An electronic device includes an intelligent refresh control circuit generating an intelligent refresh pulse with a pulse that has a generation period that is adjusted based on the number of generations of an auto refresh signal during an intelligent refresh operation, and an internal refresh signal generation circuit outputting one of a self-refresh pulse including a pulse that is periodically generated by an enable signal during a self-refresh operation and the intelligent refresh pulse as an internal refresh signal.
Legal claims defining the scope of protection, as filed with the USPTO.
2. The electronic device of claim 1, wherein the intelligent refresh control circuit is configured to generate the intelligent refresh pulse with a generation period that increases as the number of generations of the auto refresh signal increases and a with a generation period that decreases as the number of generations of the auto refresh signal decreases.
3. The electronic device of claim 1, wherein the enable signal is a signal that is enabled when a command to perform the intelligent refresh operation is input.
14. The electronic device of claim 13, wherein the self-refresh control circuit is configured to generate the self-refresh pulse with a pulse that is periodically generated from a time point at which the self-refresh entry signal is input to a time point at which the self-refresh end signal is input.
18. The electronic device of claim 13, wherein the intelligent refresh control circuit is configured to generate the intelligent refresh pulse with a generation period that increases as the number of generations of the auto refresh signal increases and a generation period that decreases as the number of generations of the auto refresh signal decreases.
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September 21, 2021
May 9, 2023
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